Indian Postal Code System Consists of Six digits. The first to digits represent the state, the second two digits represent the district and the Third two digits represents the Post Office.In this case the first two digits 41 represents the state Maharashtra, the second two digits 37 represent the district Ahmed Nagar, and finally 06 represents the Post Office Guha B.O. Thus the Zip Code of Guha B.O, Ahmed Nagar, maharashtra is 413706